derek.holloway
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39 lines
1.6 KiB
Fortran
39 lines
1.6 KiB
Fortran
!===----------------------------------------------------------------------===!
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! This directory can be used to add Integration tests involving multiple
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! stages of the compiler (for eg. from Fortran to LLVM IR). It should not
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! contain executable tests. We should only add tests here sparingly and only
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! if there is no other way to test. Repeat this message in each test that is
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! added to this directory and sub-directories.
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!===----------------------------------------------------------------------===!
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! RUN: %flang_fc1 -emit-llvm -o - %s | FileCheck %s --check-prefixes=LLVM
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!===============================================================================
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! Test lowering of prefetch directive
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!===============================================================================
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subroutine test_prefetch_01()
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! LLVM: %[[VAR_J:.*]] = alloca i32, i64 1, align 4
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! LLVM: %[[VAR_I:.*]] = alloca i32, i64 1, align 4
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! LLVM: %[[VAR_A:.*]] = alloca [256 x i32], i64 1, align 4
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integer :: i, j
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integer :: a(256)
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a = 23
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! LLVM: call void @llvm.prefetch.p0(ptr %[[VAR_A]], i32 0, i32 3, i32 1)
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!dir$ prefetch a
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i = sum(a)
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! LLVM: %[[LOAD_I:.*]] = load i32, ptr %[[VAR_I]], align 4
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! LLVM: %{{.*}} = add nsw i32 %[[LOAD_I]], 64
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! LLVM: %[[GEP_A:.*]] = getelementptr nusw nuw i32, ptr %[[VAR_A]], i64 {{.*}}
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! LLVM: call void @llvm.prefetch.p0(ptr %[[GEP_A]], i32 0, i32 3, i32 1)
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! LLVM: call void @llvm.prefetch.p0(ptr %[[VAR_J]], i32 0, i32 3, i32 1)
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do i = 1, (256 - 64)
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!dir$ prefetch a(i+64), j
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a(i) = a(i-32) + a(i+32) + j
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end do
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end subroutine test_prefetch_01
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